Falciparum malaria: differential effects of antimalarial drugs on ex vivo parasite viability during the critical early phase of therapy.

A method of monitoring Plasmodium falciparum viability ex vivo was used to compare the ability of different antimalarial drugs to arrest the progression of young parasites to mature, potentially damaging stages. Neither pyrimethamine-sulfadoxine nor quinine, the treatment of choice for severe, life-...

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Main Authors: Watkins, WM, Woodrow, C, Marsh, K
Format: Journal article
Language:English
Published: 1993
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author Watkins, WM
Woodrow, C
Marsh, K
author_facet Watkins, WM
Woodrow, C
Marsh, K
author_sort Watkins, WM
collection OXFORD
description A method of monitoring Plasmodium falciparum viability ex vivo was used to compare the ability of different antimalarial drugs to arrest the progression of young parasites to mature, potentially damaging stages. Neither pyrimethamine-sulfadoxine nor quinine, the treatment of choice for severe, life-threatening malaria, had a demonstrable effect on circulating parasites during the first 24 hr of therapy. In contrast, in vivo exposure to halofantrine for as little as six hours was sufficient to arrest parasite development. The method of assessing ex vivo parasite viability permits a comparison of antimalarial drug action at a time that may be critical for the therapy of life-threatening disease. If parenteral formulations of halofantrine prove to be safe and effective, they may have a role in the therapy of severe malaria.
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spelling oxford-uuid:9767ffd1-d34a-49d5-8f6a-2fbf9db942f22022-03-26T23:59:22ZFalciparum malaria: differential effects of antimalarial drugs on ex vivo parasite viability during the critical early phase of therapy.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:9767ffd1-d34a-49d5-8f6a-2fbf9db942f2EnglishSymplectic Elements at Oxford1993Watkins, WMWoodrow, CMarsh, KA method of monitoring Plasmodium falciparum viability ex vivo was used to compare the ability of different antimalarial drugs to arrest the progression of young parasites to mature, potentially damaging stages. Neither pyrimethamine-sulfadoxine nor quinine, the treatment of choice for severe, life-threatening malaria, had a demonstrable effect on circulating parasites during the first 24 hr of therapy. In contrast, in vivo exposure to halofantrine for as little as six hours was sufficient to arrest parasite development. The method of assessing ex vivo parasite viability permits a comparison of antimalarial drug action at a time that may be critical for the therapy of life-threatening disease. If parenteral formulations of halofantrine prove to be safe and effective, they may have a role in the therapy of severe malaria.
spellingShingle Watkins, WM
Woodrow, C
Marsh, K
Falciparum malaria: differential effects of antimalarial drugs on ex vivo parasite viability during the critical early phase of therapy.
title Falciparum malaria: differential effects of antimalarial drugs on ex vivo parasite viability during the critical early phase of therapy.
title_full Falciparum malaria: differential effects of antimalarial drugs on ex vivo parasite viability during the critical early phase of therapy.
title_fullStr Falciparum malaria: differential effects of antimalarial drugs on ex vivo parasite viability during the critical early phase of therapy.
title_full_unstemmed Falciparum malaria: differential effects of antimalarial drugs on ex vivo parasite viability during the critical early phase of therapy.
title_short Falciparum malaria: differential effects of antimalarial drugs on ex vivo parasite viability during the critical early phase of therapy.
title_sort falciparum malaria differential effects of antimalarial drugs on ex vivo parasite viability during the critical early phase of therapy
work_keys_str_mv AT watkinswm falciparummalariadifferentialeffectsofantimalarialdrugsonexvivoparasiteviabilityduringthecriticalearlyphaseoftherapy
AT woodrowc falciparummalariadifferentialeffectsofantimalarialdrugsonexvivoparasiteviabilityduringthecriticalearlyphaseoftherapy
AT marshk falciparummalariadifferentialeffectsofantimalarialdrugsonexvivoparasiteviabilityduringthecriticalearlyphaseoftherapy